When does support for MongoDB 9.0 end?
MongoDB 9.0 gets no active support any more and security updates until 31 October 2031.
When does support for MongoDB 8.3 end?
MongoDB 8.3 gets no active support any more and security updates until 31 October 2029.
When does support for MongoDB 8.0 end?
MongoDB 8.0 gets no active support any more and security updates until 31 October 2029.
Which MongoDB version should I use?
For new installations MongoDB 9.0. Older branches only while they still get security updates.